Digital Commons Network^™

The Effects Of Milk Components On Lactoperoxidase Activity, Leonard Fweja, Michael Lewis, Alistair Grandison

Tanzania Journal of Science

This study examined the effects of storage conditions (in particular temperature and media composition) and changes in composition of each milk fraction, and of individual components on lactoperoxidase (LP) activity. The enzyme demonstrated a pulsing characteristic especially in samples stored at 5 °C, however, temperature and media composition did not have great effects on the pulsing behaviour of the enzyme. The results also indicated small but statistically significant variations (P ≤ 0.05) in LP activity between whole milk (control) and acid whey, rennet whey and cream and non-significant variations (P > 0.05) between the control and skimmed milk, and between skimmed …

Variability Of Selected Mineral Contents In Marine Fish From Local Markets In Tanzania, Stella Shija, Matobola Mihale, Daniel Shilla

Tanzania Journal of Science

Mineral contents (K, Na, Ca and Mg) in selected marine fish species (Alectis ciliaris, Lethrinus harak, Rastrelliger kanagurta and Siganus canaliculatus) from local fish markets were analysed in wet and dry seasons. The processing methods (frying and boiling) were also assessed for their influence on the mineral contents. Samples were randomly collected from Tanga, Bagamoyo, Dar es Salaam and Mtwara seaports, analysed using established methods and determined by Graphite Furnace Atomic Absorption Spectrometry. Mean mineral contents in individual and all analysed fish species were high during dry season compared to wet season except Ca and the difference was statistically significant …

Brazilian Maize Yields Negatively Affected By Climate After Land Clearing, Stephanie A. Spera, Jonathan M. Winter, Trevor F. Partridge

Geography and the Environment Faculty Publications

To date, over 50% of the Brazilian Cerrado has been cleared predominantly for 11 agropastoral purposes. Here, we use the Weather Research and Forecasting model to run 15- 12 year climate simulations across Brazil with six land-cover scenarios: 1) before extensive land 13 clearing; 2) observed in 2016; 3) Cerrado replaced with single-cropped (soy) agriculture; 4) 14 Cerrado replaced with double-cropped (soy-maize) agriculture; 5) eastern Amazon replaced 15 with single-cropped agriculture; and 6) eastern Amazon replaced with double-cropped 16 agriculture. All land-clearing scenarios (2-6) contain significantly more growing season days 17 with temperatures that exceed critical temperature thresholds for maize. …

Domestic Wastewater Treatment Using A Modified Electrocoagulation Process., Kassem El Alfy, Kamal Radwan, Moharram Abdou, Mohamed Al Nady

Mansoura Engineering Journal

A raw domestic wastewater (DWW) was treated using a modified electrocoagulation and conventional electrocoagulation (EC) experimentally. The EC process was modified by providing the plate connected by earth as earthen system and compared it with the conventional system under same operational conditions. The initial medium strength COD ranged from 500 to 700 mg/l was used. A bench scale electrocoagulation unit has been operated under batch operational conditions along nine months. The electrocoagulation unit has been consisted of transparent basin containing iron and aluminum electrodes which are connected to a power supply unit. The system was operated under different operational conditions …

The Effects Of Surface-Water Flow On The Quality Of Groundwater And Surface-Water Systems, Quanghee Yi

USF Tampa Graduate Theses and Dissertations

My research has focused on the effects of surface-water flow on the quality of groundwater and surfacewater systems. For the first part of my research (Chapter 2 ), I s tudied the effects of s urface flow system changes in the water-conservation areas and canals in southeast Florida on the quality of groundwater in the surficial aquifer system.

For the second part of my research, by developing analytical models using the superposition method, I investigated the effects of bidirectional surface-water flow on the conservative contaminant concentrations (Chapter 4) and mean residence time (Chapter 5) in streams and rivers as well …

Validation Of The Perceived Self-Efficacy Scale (Pse) Among Cassava Farmers In Tanzania, Fatihiya Ally Massawe, Fatihiya Ally Massawe, Amani Angumbwike Mwakalapuka

Journal of Humanities and Social Sciences

This paper validated the Perceived Self-Efficacy (PSE) scale as a measurement tool for farmers’ self-efficacy. From the social cognitive theory, self-efficacy is the key determinant of many social-cognitive behaviours, including the adoption of farming technologies. In this paper, PSE was adopted and tested in a two-stage study among cassava farmers in Mara, Mwanza, and Kagera regions of Tanzania. In the first stage, 200 respondents in Serengeti District of Mara region were exposed to the 13 items of PSE scale, while in the second the adopted tool with 11 items was administered to a total of 360 participants in Mara, Mwanza, …

Removal Of Iron And Manganese From Groundwater: A Study Of Using Potassium Permanganate And Sedimentation., Mahmoud Elsheikh, Hany Guirguis, Abd El-Rahman Amer

Mansoura Engineering Journal

This paper studies the efficiency of iron (Fe+2) and manganese (Mn+2) removal from groundwater using oxidation by potassium permanganate followed by filtration and using conventional treatment consisting of flocculation, sedimentation and filtration. Experiments were done for different combinations of Fe+2 and Mn+2 concentrations. The obtained results show that Potassium Permanganate (PP) gives good results. By using PP dose equals to half of the theoretically required one, it can remove up to 100% and 90% of iron and manganese respectively over different tested concentrations at pH=7.0. Increasing rate of filtration decreases the Mn+2 removal efficiency obviously. Sedimentation is required when combined …

Are We Producing Society-Ready Foresters? A Quantitative Content Analysis Of Graduate-Level Forestry Curriculum, Jacqueline Meyer

The Pegasus Review: UCF Undergraduate Research Journal

Forestry education in the United States has been hailed for its ability to provide students with the scientific and technical skills needed for a career in forestry as much as it has been criticized for ignoring social dimensions of the discipline. Its inability to adapt curriculum to the increasingly multidisciplinary nature of the forestry profession has led to stagnant or decreasing enrollment and lack of student diversity in recent years. While forestry education and curriculum has been thoroughly analyzed at the undergraduate level, no such analysis exists for graduate curriculum. This study analyzes the course content of 40 graduate-level forestry …

Using Diatom Indices To Evaluate Water Quality In Abu-Zirig Marsh Thi-Qar Province /South Of Iraq, Layla S. Abu-Hadal, Jinan S. Al Hassany

Baghdad Science Journal

The study attempts to assess water quality in Abu-Zirig Marsh which used epiphytic Diatom community for assessing water quality. Many of Diatom indices {Trophic diatom index (TDI), Diatom index (DI), Generic diatom index (GDI) have been used to give qualitative information about the status of the freshwater ecosystem(good, moderate, high pollution). In this study, the epiphytic diatoms on both host aquatic plants Phragmites australis and Typha domengensis were collected from Abu-Zirig Marsh within Thi-Qar Province at three sites in Autumn, 2018 and winter, 2019. Epiphytic diatoms were Identified by the preparation of permanent slides method, some species of epiphytic diatom …

Design Aspects, Energy Consumption Evaluation, And Offset For Drinking Water Treatment Operation, Saria Bukhary, Jacimaria Batista, Sajjad Ahmad

Civil and Environmental Engineering and Construction Faculty Research

Drinking water treatment, wastewater treatment, and water distribution are energy-intensive processes. The goal of this study was to design the unit processes of an existing drinking water treatment plant (DWTP), evaluate the associated energy consumption, and then offset it using solar photovoltaics (PVs) to reduce carbon emissions. The selected DWTP, situated in the southwestern United States, utilizes coagulation, flocculation, sedimentation, filtration, and chlorination to treat 3.94 m3 of local river water per second. Based on the energy consumption determined for each unit process (validated using the plant’s data) and the plant’s available landholding, the DWTP was sized for solar PV …

Redwood Roots: Stories Of Community Engagement At Hsu, Hsu Center For Community Based Learning

Redwood Roots Digital Magazine

Welcome to the inaugural edition of Humboldt State University’s Redwood Roots magazine. When we came up with the idea for this magazine, we wanted to highlight the many wonderful ways that students, faculty and community partners are engaging in community-based learning practices in and around Humboldt County. This project was a huge endeavor and we are grateful to our partners, both ongoing, such as the HSU Library Press team and the shorter term partners that donated their time to submit articles, develop the concept and layout for this magazine, and their many other contributions. We began this project in the …

June 18-19, 2020, Ohio University Board Of Trustees Meeting Minutes, Ohio University Board Of Trustees

Board of Trustees Meeting Minutes

Meeting minutes document the activities of Ohio University's Board of Trustees.

Advancing Human Health In The Decade Ahead: Pregnancy As A Key Window For Discovery: A Burroughs Wellcome Fund Pregnancy Think Tank., Yoel Sadovsky, Sam Mesiano, Graham J Burton, Michelle Lampl, Jeffrey C Murray, Rachel M Freathy, Anita Mahadevan-Jansen, Ashley Moffett, Nathan D Price, Paul H Wise, Derek E Wildman, Ralph Snyderman, Nigel Paneth, John Anthony Capra, Marcelo A Nobrega, Yaacov Barak, Louis J Muglia

Articles, Abstracts, and Reports

Recent revolutionary advances at the intersection of medicine, omics, data sciences, computing, epidemiology, and related technologies inspire us to ponder their impact on health. Their potential impact is particularly germane to the biology of pregnancy and perinatal medicine, where limited improvement in health outcomes for women and children has remained a global challenge. We assembled a group of experts to establish a Pregnancy Think Tank to discuss a broad spectrum of major gestational disorders and adverse pregnancy outcomes that affect maternal-infant lifelong health and should serve as targets for leveraging the many recent advances. This report reflects avenues for future …

Examining The Impact Of Climate Change Film As An Educational Tool, Brittany Bondi, Salma Monani, Sarah M. Principato, Christopher P. Barlett

Student Publications

Purpose: The aim of this paper is to evaluate the effectiveness of film in communicating issues related to climate change. While previous studies demonstrate an immediate effect of a film post-screening, this study also considered if a film can inspire long-term effects, and if supplemental educational information plays a role on participant understanding.

Design/methodology/approach: Using surveys, we assessed undergraduate students’ climate change responses pre-, immediately-post, and 9-weeks post watching the climate change documentary The Human Element (Prod. Earth Vision Institute, 2018). In the 9-week interim before the final survey, half of the participants received weekly information on climate change via …

2020-June-16-Etsus Department Of Appalachian Studies Delivers Governors School Online, University Marketing And Communication, East Tennessee State University

ETSU News

2020 Governor's School

JOHNSON CITY (June 16, 2020) – Despite the COVID-19 pandemic, 26 top high school juniors and seniors from across the state were able to participate virtually in the 33^rd annual Governor’s School for the Scientific Exploration of Tennessee Heritage offered this month by the Center of Excellence for Appalachian Studies and Services at East …

Vertebrates On The Brink As Indicators Of Biological Annihilation And The Sixth Mass Extinction, Gerardo Ceballos, Paul R. Ehrlich, Peter H. Raven

Harold W. Manter Laboratory of Parasitology: Library Materials

The ongoing sixth mass species extinction is the result of the destruction of component populations leading to eventual extirpation of entire species. Populations and species extinctions have severe implications for society through the degradation of ecosystem services. Here we assess the extinction crisis from a different perspective. We examine 29,400 species of terrestrial vertebrates, and determine which are on the brink of extinction because they have fewer than 1,000 individuals. There are 515 species on the brink (1.7% of the evaluated vertebrates). Around 94% of the populations of 77 mammal and bird species on the brink have been lost in …

Determination Of Volatile Organic Compounds At A Marine Terminal In United States Using In-Borehole Gas Monitoring, A. N. Nwachukwu, C. U. Uwa, K. E. Nwagu, B. E. Ephraim

Journal of Marine Science and Technology–Taiwan

A time-series study was conducted to determine both the aggregate and specific Volatile Organic Compounds (VOCs) concentrations at a Marine Terminal. An in-situ aggregate data of VOC concentrations and some environmental parameters were logged by means of an in-borehole gas monitor called Gasclam (Ion Science, UK). A Tenax TA sorbent tube incorporated into and to work in parallel with the Gasclam was used to adsorb bulk concentrations of VOCs and subsequently desorbed (for characterization) using Thermal Desorption/Gas Chromatography-Mass Spectroscopy (TD/GC-MS) technique. The result shows aggregate VOC concentrations of 31385 ppm and 17140 ppm in wells I and II respectively over …

Accessible, Adaptable, Affordable: How Oer And Low-Cost Materials Can Future-Proof Your Courses, Janelle L. Wertzberger, Mary R. Elmquist, Sarah Appedu

All Musselman Library Staff Works

Janelle Wertzberger, Mary Elmquist, Sarah Appendu. Sarah Principato (Environmental Studies), Alecea Standlee (Sociology), Mercedes Valmisa (Philosophy) When COVID-19 caused an emergency pivot to online teaching and learning, students and faculty suddenly needed course materials that were accessible and adaptable in that context. Open educational resources (OER) offer flexibility and resiliency in any mode of instruction, while simultaneously reducing inequities among students. Faculty can employ other strategies to reduce student costs, as well. Hosted by the Musselman Library Scholarly Communications team, this session will include a short presentation, testimonials from faculty who are already teaching with OER and other low-cost materials, …

Lawrence University One Hundred Seventy-First Commencement, Sunday, June 14, 2020, Lawrence University

Commencement Programs

No abstract provided.

The Fierce Green Fire: Vol. 10 Issue 21, Wofford College. Department Of Environmental Studies

The Fierce Green Fire

No abstract provided.

Global Health Education In Chinese Universities: Potential For Collaboration With Schools Of Nursing, Quanlei Li

Theses

The Consortium of Universities for Global Health (CUGH) and the Chinese Consortium of Universities for Global Health (CCUGH) were established within public health schools in North America in 2009 and in China in 2013. These consortiums are mandated to engage a variety of complementary disciplines including those in the health sphere such as public health, medicine, dentistry, pharmacy, and nursing as well as those outside of the health arena, including law, environmental studies, business, anthropology, etc. Specifically, expanding the exposure of nursing students to global health curricula is critical as nurses are essential actors in the health care system: making …

Flooding, Landslides, Wildfires, Air Pollution, And Income: Risk In California, Brittany Bondi, Alyssa J. Kaewwilai

Gettysburg Social Sciences Review

California is infamously known for its likelihood of environmental hazards such as flooding, landslides, air pollution, and forest fires which can be attributed to the natural climate of the area as well as anthropologically influenced climate change. Air pollution also poses potential threats and dangers to the civilians of California as increasing populations and uses of fossil fuels continue to contribute to the growing issue of climate change. The goal of this study was to examine and analyze the geospatial trends environmental hazards in California such as landslides, air pollution, flooding, and forest fires. A weighted test, zone and slope …

Rfia: An R Package For Estimation Of Forest Attributes With The Us Forest Inventory And Analysis Database, Hunter Stanke, Andrew O. Finley, Aaron S. Weed, Brian F. Walters, Grant M. Domke

United States National Park Service: Publications

Forest Inventory and Analysis (FIA) is a US Department of Agriculture Forest Service program that aims to monitor changes in forests across the US. FIA hosts one of the largest ecological datasets in the world, though its complexity limits access for many potential users. rFIA is an R package designed to simplify the estimation of forest attributes using data collected by the FIA Program. Specifically, rFIA improves access to the spatiotemporal estimation capacity of the FIA Database via space–time indexed summaries of forest variables within user-defined population boundaries (e.g., geographic, temporal, biophysical). The package implements multiple design-based estimators, and has …

Neoliberal Legacies: Peru, Potatoes And The Challenges Of Agricultural Reform, Emma Belliveau

Honors Scholar Theses

Peru and the potato; the two have been linked together for almost 10,000 years. This relationship has developed and born rich food, cultural heritage, and agricultural tradition. Once Spain, one of the dominant global and colonial powers, entered the mix in the 16th C, the makeup of Peru's potato growing industry changed for good. While the potato catapulted Europe's population out of hunger and allowed the Western world to modernize, Peru became merely a stomping ground for raw materials. The economy of Peru--to this day--is dependent on exporting raw materials, which means exporting agricultural goods as well. At one time …

Combined Use Of Sentinel‐1 Sar And Landsat Sensors Products For Residual Soil Moisture Retrieval Over Agricultural Fields In The Upper Blue Nile Basin, Ethiopia, Getachew Ayehu, Tsegaye Tadesse, Berhan Gessesse, Yibeltal Yigrem, Assefa M. Melesse

National Drought Mitigation Center: Faculty Publications

The objective of this paper is to investigate the potential of sentinel‐1 SAR sensor products and the contribution of soil roughness parameters to estimate volumetric residual soil moisture (RSM) in the Upper Blue Nile (UBN) basin, Ethiopia. The backscatter contribution of crop residue water content was estimated using Landsat sensor product and the water cloud model (WCM). The surface roughness parameters were estimated from the Oh and Baghdadi models. A feed‐forward artificial neural network (ANN) method was tested for its potential to translate SAR backscattering and surface roughness input variables to RSM values. The model was trained for three inversion …

Radical Utu : Critical Ideas And Ideals Of Wangari Muta Maathai, Besi Brillian Muhonja

Ohio University Press Open Access Books

Wangari Muta Maathai was a scholar-activist known for founding the Green Belt Movement, an environmental campaign that earned her the Nobel Peace Prize. While many studies of Maathai highlight her activism, few examine Maathai as a scholar whose contributions to various disciplines and causes spanned more than three decades.

In Radical Utu: Critical Ideas and Ideals of Wangari Muta Maathai, Besi Brillian Muhonja presents the words and works of Maathai as theoretical concepts attesting to her contributions to gender equality, democratic spaces, economic equity and global governance, and indigenous African languages and knowledges. Muhonja’s well-rounded portrait of Maathai’s ideas …

Creating New Futures: Collaborative Design Practice, Josea Cotto, Nick Jenisch, Emilie Taylor Welty, Rashidah Williams, Anna Yoachim

Pluriversal Design Conference Series

Collaborative design offers one opportunity to address longstanding inequities in the built environment. The work of the Albert and Tina Small Center for Collaborative Design, the community design center of the Tulane School of Architecture in New Orleans, Louisiana, USA, serves as a case study to better understand the process and possibilities of this practice. Founded fifteen years ago, the Center believes each of us should have the opportunity to shape the places we live, work, and play. At the heart of the Center’s work is a commitment to iteration, responsiveness, and action. Unique in its structure for a university- …

Speculation Of The Purpose Of Life In 2050 From Kyoto: Case Study On Transition Design In Japan, Masaki Iwabuchi, Daijiro Mizuno

Pluriversal Design Conference Series

Japanese life and career situation have become opaque due to nationwide problems such as the collapse of lifetime employment, the aging society with declining birth rates, and the drop in GDP manifested in a reduction in international competitiveness. Statistics show that the younger generation of Japan has significantly lower ratings of self-confidence, willingness to contribute to society, and hopes for the future, compared to other nations. Under these circumstances, we aimed to speculate on a humane vision where everyone can live with a meaningful purpose (*ikigai* in Japanese) from the historical city of Kyoto, Japan. Using the theories underpinning Transition …

The Role Of Socio-Technical Instruments In Craft And Design Practice In Indonesia, Prananda Luffiansyah Malasan, Meirina Triharini, Muhammad Ihsan

Pluriversal Design Conference Series

Craft and design practice has emerged as a tool to improve the economic and social conditions in various countries. Many approaches have been formulated, particularly participatory design (PD) method to bring a democratic design process. However, the narrow focus of PD on micro activities tends to neglect wider contextual factors, such as formal and informal types of institutions. Based on the study of the development of craft products organized by the design center in Indonesia, this paper attempts to identify the diverse interests of the actors, including the objectives of the design center, the target market set by the designers, …

Justice For Juristac: Using International And Comparative Law To Protect Indigenous Lands, Zartner, Dana

Santa Clara Journal of International Law

Justice for Juristac: Using International and Comparative Law to Protect Indigenous Lands